// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.
public class Main {
    public static void main(String[] args) {
        double a=1244545643.564161245665;
        System.out.println("double类型的数字1244545643.564161245665是"+a);
        System.out.println("int类型的数字1244545643.564161245665是"+(int)a);
        System.out.println("byte类型的数字1244545643.564161245665是"+(byte)a);
        System.out.println("float类型的数字1244545643.564161245665是"+(float)a);
    }
    }